Please solve it quickly within 15 minutes and get two upvotes immediately. Thank you

MajorNet Systems is a start-up company that makes connectors for high-speed Internet connections. The company has budgeted variable costs of $145 for each connector and fixed costs of $8,820 per month. MajorNet's static budget predicted production and sales of 100 connectors in August, but the company actually produced and sold only 84 connectors at a total cost of $21,000. MajorNet's total flexible budget cost for 84 connectors per month is: Select one: O $21,000. O $7,500. O $12,180. $19,680. O $14,500